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Message-ID: <20100720064736.GB11081@secunet.com> Date: Tue, 20 Jul 2010 08:47:36 +0200 From: Steffen Klassert <steffen.klassert@...unet.com> To: Herbert Xu <herbert@...dor.apana.org.au> Cc: Dan Kruchinin <dkruchinin@....org>, Andrew Morton <akpm@...ux-foundation.org>, linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH 0/4] padata/pcrypt: fixes This patchset contains the following fixes: 1. padata - Fix a potential hang of the parallel worker threads on cpu hotplug. 2. padata - Fix two NULL pointer dereference crashes if one of the padata cpumasks is empty. The crashes can be triggered by doing echo 0 > /sys/kernel/pcrypt/pencrypt/[parallel_cpumask/serial_cpumask] 3. padata - Fix a division by zero crash if the parallel cpumask contains no active cpu. Can be triggered by doing echo 0 > /sys/kernel/pcrypt/pencrypt/parallel_cpumask 4. pcrypt - Fix division by zero crash if the callback cpumask is empty. Can be triggered by doing echo 0 > /sys/kernel/pcrypt/pencrypt/serial_cpumask I ran a script that does cpumask changes and cpu hotplugs as fast as possible while sending IPsec packets on maximal rate with pcrypt. It showed no furter crashes overnight, so I hope I've got them all. padata API corrections and some minor fixes/cleanups are comming later. Steffen -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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